Engineering Mechanics
Engineering Mechanics for GATE Mechanical and Civil Engineering, one topic per lesson: the theory in plain words, the formulas, a solved example, and GATE-style questions (MCQ, MSQ and NAT) whose numerical answers are recomputed by a program when the site is built.
1Statics
- Free-Body Diagrams and EquilibriumHow to draw a free-body diagram, the equations of equilibrium in 2D, support reactions, two- and three-force members and Lami's theorem, with solved GATE-style problems.
- Friction, Inclined Planes and Belt FrictionStatic and kinetic friction, angle of friction and angle of repose, blocks on inclined planes, ladder problems, wedges and the belt friction equation T1/T2 = e^(μθ).
- Trusses, Frames and Virtual WorkAnalysis of plane trusses by the method of joints and method of sections, zero-force members, determinacy m = 2j − 3, and the principle of virtual work.
2Dynamics
- Kinematics and Dynamics of Rigid BodiesEquations of motion, projectiles, circular motion, relative velocity, instantaneous centre, Newton's second law for rigid bodies, moment of inertia and rolling motion.
- Work, Energy, Impulse and MomentumWork-energy theorem, conservation of energy, power, impulse and momentum, collisions and the coefficient of restitution, and angular momentum, with solved examples.